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Full text of "IS 278: Galvanized Steel Barbed Wire for Fencing-Specification"

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Disclosure to Promote the Right To Information 

Whereas the Parliament of India has set out to provide a practical regime of right to 
information for citizens to secure access to information under the control of public authorities, 
in order to promote transparency and accountability in the working of every public authority, 
and whereas the attached publication of the Bureau of Indian Standards is of particular interest 
to the public, particularly disadvantaged communities and those engaged in the pursuit of 
education and knowledge, the attached public safety standard is made available to promote the 
timely dissemination of this information in an accurate manner to the public. 



Mazdoor Kisan Shakti Sangathan 
"The Right to Information, The Right to Live" 



Jawaharlal Nehru 
'Step Out From the Old to the New" 



IS 278 (2009) : Galvanized Steel Barbed Wire for 
Fencing-Specification [MED 10: Wire Ropes and Wire 
Products] 



Satyanarayan Gangaram Pitroda 
Invent a New India Using Knowledge 




5fR TT^ ^TT <sMHI | *ft ^fft ^TRT ^ff ^TT ^T^fT )f 

Bhartrhari — Nltisatakam 
"Knowledge is such a treasure which cannot be stolen" 





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PROTECTED BY COPYRIGHT 



IS 278 : 2009 

cTR — fcrf^rfe 

Indian Standard 

GALVANIZED STEEL BARBED WIRE FOR 
FENCING — SPECIFICATION 

( Fourth Revision ) 



ICS 77.140.65; 91.090 



© BIS 2009 

BUREAU OF INDIAN STANDARDS 

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG 
NEW DELHI 110002 



August 2009 Price Group 3 



Wire Ropes and Wire Products Sectional Committee, MED 10 



FOREWORD 

This Indian Standard (Fourth Revision) was adopted by the Bureau of Indian Standards, after the draft finalized 
by the Wire Ropes and Wire Products Sectional Committee had been approved by the Mechanical Engineering 
Division Council. 

This standard was first published in 1951, and subsequently revised in 1962 and 1978. The present revision has 
been taken up with a view to modify the earlier provisions in the light of experience gained in implementation of 
this standard by both manufacturers and the users. In this revision, all the four amendments issued to its third 
revision have been incorporated. 

The following are the main changes in this revision: 

a) Requirement of galvanizing has been changed to minimum medium or heavy coating in place of minimum 
medium coating. 

b) Use of electrogalvanized wire has been included for fabrication of barbed wire. 

The composition of the Committee responsible for the formulation of this standard is given in Annex B. 

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, 
observed and calculated, expressing the result of a test or analysis, shall be rounded off in accordance with 
IS 2 : 1960 'Rules for rounding off numerical values (revised)' . The number of significant places retained in the 
rounded off value should be the same as that of the specified value in this standard. 



IS 278 : 2009 



Indian Standard 

GALVANIZED STEEL BARBED WIRE FOR 
FENCING — SPECIFICATION 

( Fourth Revision ) 



1 SCOPE 

This standard covers the requirements for two types of 
galvanized steel barbed wire with two strands of wire, 
in a number of sizes and constructions. 

2 REFERENCES 

The following standards contain provisions, which 
through reference in this text, constitute provision of 
this standard. At the time of publication, the editions 
indicated were valid. All standards are subject to 
revision and parties to agreements based on this 
standard are encouraged to investigate the possibility 
of applying the most recent editions of the standards 
indicated below: 

IS No. Title 

280 : 2006 Mild steel wire for general 

engineering purposes (fourth 

revision) 
1340 : 1977 Code of practice for chromate 

conversion coating of zinc and 

cadmium coated articles and zinc 

base alloys (first revision) 
1608 : 1995 Mechanical testing of metals — 

Tensile testing (third revision) 
1755 : 1983 Method for wrapping test for metallic 

wire (first revision) 
2633 : 1986 Methods for testing uniformity of 

coating of zinc coated articles 

(second revision) 
4826 : 1979 Specification for hot-dipped 

galvanized coatings on round steel 

wires (first revision) 
12753 : 1989 Electrogalvanized coatings on round 

steel wire — Specification 

3 TERMINOLOGY 

For the purpose of this standard, the following 
definitions shall apply. 

3.1 Length of the Barb, shall mean the distance of 
the barb point from the axis of the line wire of wires 
around which the point wire is wound. 



3.2 Line Wire, shall mean a wire of specified diameter 
of which the barbed wire is made. 

3.3 Point Wire, shall mean a wire of specified diameter 
of which the barbs are made. 

4 TYPES 

4.1 Type A (Iowa Type) 

The barbs shall have four points and shall be formed 
by twisting two-point wires, each two turns, tightly 
around both line wires making altogether four complete 
turns (see Fig. 1). 

4.2 Type B (Glidden Type) 

The barbs shall have four points and shall be formed 
by twisting two-point wires, each two turns, tightly 
around one line wire making altogether four complete 
turns (see Fig. 1). 

5 SIZES 

The sizes of barbed wire shall be as given in Table 1 . 

6 MATERIAL 

The galvanized barbed wire shall be manufactured 
from mild steel wire conforming to IS 280. The 
galvanized coating shall conform to the requirements 
for any one of the type of coating as given in IS 4826 
as per agreement with the purchaser. The coating 
requirements of electrogalvanized wire shall conform 
to the requirements for any one of the type as given in 
IS 12753 as per agreement with the purchaser. 

7 MANUFACTURE 

7.1 The barbed wire shall be formed by twisting 
together two-line wires, one or both containing the 
barbs. The direction of twisting may be in one direction 
or alternately in left or right directions. 

7.2 The barbs shall be so finished that the four points 
are set and located or locked as far as possible at right 
angles to each other (see Fig. 1). The barbs shall be 
well formed, tightly wrapped and shall have a length 
of not less than 13 mm and not more than 18 mm. The 



IS 278 : 2009 



-ONGITUDINALWIRE 

a — LINE WIRES 



ARBS 




TYPE A 




TYPE B 

Fig. 1 Type A (Iowa Type) and Type B (Glidden Type) 

Table 1 Sizes 

(Clause 5) 



SI 
No. 


Size 
Designation 


Diameter of Wire 


Mass of 


Distance 

Between 

Two 

Barbs 

mm 


No. of Lays 
Between the 

Two 

Consecutive 

Barbs 


Line Wire 


Point Wire 


Completed 
Barbed Wire 


Nominal 
mm 


Tolerance 
mm 


Nominal 
mm 


Tolerance 
mm 


Max 
g/m 


Min 
g/m 


(1) 


(2) 


(3) 


(4) 


(5) 


(6) 


(7) 


(8) 


(9) 


(10) 


i) 
ii) 
iii) 
iv) 
v) 
vi) 


1 

2 
3 
4 
5 
6 


2.50 
2.50 
2.50 
2.50 

2.24 
2.24 


+0.08 
+0.08 
+0.08 
+0.08 
+0.08 
+0.08 


2.50 
2.50 
2.00 
2.00 
2.00 
2.00 


+0.08 
+0.08 
+0.08 
+0.08 
+0.08 
+0.08 


155 
120 
125 
103 
106 
85 


136 
108 
108 
89 
97 
78 


75 + 12 
150+12 

75 + 12 
150 + 12 

75 + 12 
150 + 12 


2 to 7 
2 to 7 
2 to 7 
2 to 7 
2 to 7 
2 to 7 



NOTE — The mass in g/m shall be obtained by dividing the total mass of the reel by the linear length in meters. 



point shall be sharp and cut at an angle not greater 
than 35° to the axis of the wire forming the barbs. 

8 CHROMATING 

The barbed wire may also be given protective chromate 
conversion coating as per agreement with the purchaser. 
This shall conform to IS 1340. 

9 FREEDOM FROM DEFECTS 

9.1 The line and point wires shall be circular in section, 



free from scales and other defects and shall be 
uniformly galvanized. 

9.2 The line wire shall be in continuous lengths and 
shall not contain any welds other than those in the rod 
before it is drawn. The distance between two successive 
weldings in the line wire of finished barbed wire shall 
not be less than 15 m. There shall be no splicing. 

10 DESIGNATION 

A galvanized steel barbed wire of Type A and of size 



IS 278 : 2009 



designation 1 shall be designated as: 
Steel Barbed Wire, A- 1 IS 278 

11 SAMPLING 

Unless otherwise agreed to between the manufac- 
turer and the purchaser, the sampling plan as given in 
Annex A shall be followed. 

12 TESTS 

12.1 Tensile Test 

The completed barbed wire and the line wire shall have 
minimum breaking load and tensile strength 
respectively as specified in Table 2. The test on the 
line wire shall be carried out in accordance with 
IS 1608. The method of testing the completed barbed 
wire shall be subject to agreement between the 
manufacturer and the purchaser. 

Table 2 Tensile Properties 



SI 

No. 

(1) 


Size of Line 
Wire 

mm 

(2) 


Tensile Strength 
of Line Wire 

N/mm 2 

(3) 


Minimum Breaking 

Load of Completed 

Barbed Wire 

kN 

(4) 


i) 
ii) 


2.50 
2.24 


390-590 

390-590 


3.7 
3.0 



12.2 Zinc Coating 

12.2.1 Line Wire 

The galvanized coating shall conform to the 
requirements for any one of the type of coating as given 
in IS 4826 as per agreement with the purchaser. The 
coating requirements of electrogalvanized wire shall 
conform to the requirements for any one of the type as 
given in IS 1 2753 as per agreement with the purchaser. 

12.2.2 Point Wire 

The point wire shall be tested only for mass of zinc 
coating and shall be tested before fabrication. The wire 



shall meet the requirements as laid down for medium 
coated wire in IS 4826 or IS 12753 subject to reduction 
of not more than 15 percent of the values specified 
therein. A total number of 5 barbs shall be employed 
for conducting the test and the points of the barbs shall 
be cut before subjecting them to the test. 

NOTES 

1 If wire is tested for uniformity as per IS 2633 after barbing, 
the requirement of Preece test is to be reduced by one dip of 
half minute. 

2 The Preece test as per IS 2633 shall not be applicable in case 
of aged and weathered barbed wire. 

12.3 Ductility Test 

The line wire shall be subjected to the wrapping test in 
accordance with IS 1755. The line wire shall withstand 
wrapping and unwrapping eight turns round its own 
diameter without fracture. 

13 MARKING 

13.1 Every reel of barbed wire shall be marked legibly 
with the name of the manufacturer, the type of barbed 
wire, the diameters of the line and point wires, barb 
spacing and length and/or mass of the reel. 

13.2 BIS Certification Marking 

Each reel of barbed wire may also be marked with 
Standard Mark. 

13.2.1 The use of the Standard Mark is governed by 
the provisions of the Bureau of Indian Standards Act, 
1986 and the Rules and Regulations made thereunder. 
The details of conditions under which a licence for the 
use of Standard Mark may be granted to the 
manufacturers or producers may be obtained from the 
Bureau of Indian Standards. 

14 COILING AND PACKING 

Unless otherwise agreed to between the supplier and 
the purchaser, the barbed wire shall be supplied in metal 
or wooden reels. Each reel of barbed wire shall be 
wound and fastened compactly. 



IS 278 : 2009 



ANNEX A 

(Clause 11) 

SAMPLING PLAN 



A-l SCALE OF SAMPLING 



A-l.l Lot 



All the reels of galvanized steel barbed wire of the 
same type and same designation manufactured under 
essentially similar conditions shall constitute the lot. 

A-1.2 For ascertaining the conformity of the lot to the 
requirements of the specifications, tests shall be carried 
out on each lot separately. The number of reels to be 
selected at random for this purpose shall be in 
accordance with Table 3. 

Table 3 Scale of Sampling 



SI No. 


Number of Reels in 


Number of Reels 




the Lot 


to be Selected 


(1) 


(2) 


(3) 


i) 


Up to 25 


3 


ii) 


26 to 50 


4 


iii) 


51 to 150 


5 


iv) 


151 to 300 


7 


v) 


301 and above 


10 



A-2 NUMBER OF TESTS AND CRITERIA FOR 
CONFORMITY 

A-2.1 All the reels selected according to A-1.2 shall 



be examined for diameter of line wire and point wire; 
distance between barbs, length of barbs and freedom 
from defects. If all the reels are found satisfactory for 
each of the above characteristics, the lot shall be 
considered conforming to the requirements of these 
characteristics. 

A -2.2 When the lot is found satisfactory in A-2.1, one 
test specimen each from every selected reel shall be 
taken and subjected to tensile test (see 12.1), zinc 
coating test (see 12.2), and ductility test (see 12.3). 
The lot shall be declared conforming to the 
requirements of these characteristics if all the test 
specimens satisfy the relevant requirements. 

A-2.3 When so desired by the purchaser, one sample 
for the chemical analysis shall be drawn. The lot shall 
be declared conforming to the requirements when the 
test results satisfy the relevant requirements. 

A-2.4 The lot shall be declared conforming to the 
requirements of this specification, if it is found 
satisfactory according to A-2.1 to A-2.3. 

A-2.5 In case the lot is not found satisfactory according 
to A-2.1 to A-2.3, then the lot shall be subjected to 
100 percent retesting. 



ANNEX B 
(Foreword) 

COMMITTEE COMPOSITION 

Wire Ropes and Wire Products Sectional Committee, MED 10 



Organization 
Directorate General of Mines Safety, Dhanbad 

Amar Promoters Pvt Ltd, Solan 

Bharat Coking Coal Ltd, Dhanbad 
Bharat Wire Ropes Ltd, Mumbai 

Central Institute of Mining and Fuel Research, Dhanbad 

Directorate General Factory Advice Service & Labour Institutes, 
Mumbai 

Directorate General of Aeronautical Quality Assurance, 
New Delhi 



Representative(s) 

Shri T. S. Mukherjee (Chairman) 

Deputy Director (Mech, HQ) (Alternate) 

Shri Virender Agarwal 

Shri Jatinder Agarwal (Alternate) 

Shri Ramii Sahay 

Shri D. M. Shah 

Shri Ashwini Lokhande (Alternate) 

Shri Awadhesh Mahto 

Shri S. K. Ritolia (Alternate) 

Shri G. M. E. K. Rai 

Shri S. N. Borker (Alternate) 

Shri S. B. Prasad 

Shri Sanjay Chawla (Alternate) 



IS 278 : 2009 



Organization 
Directorate General of Civil Aviation, New Delhi 

Directorate General of Suppliles & Disposals (Quality 
Assurance Wing), New Delhi 

Directorate of Quality Assurance, New Delhi 

Eastern Coalfields Ltd, Kolkata 

Ministry of Shipping, New Delhi 

National Test House, Kolkata 

Oil and Natural Gas Commission, Dehradun 

Orient Wire Ropes, Indore 

Paradip Port Trust, Paradip 

South Eastern Coalfields Ltd, Bilaspur 

Tata Steel Ltd, Dhanbad 

The Shipping Corporation of India Ltd, Mumbai 

The Singareni Collieries Co Ltd, Andhra Pradesh 

Usha Breco Ltd, Dist Ghaziabad, UP 

Usha Martin Industries Ltd, Ranchi 

Vidarbha Hardware Industries, Akola 

BIS Directorate General 



Representative(s) 

Shri R. C. Gupta 

Shri M. M. Kaushal {Alternate) 

Shri R. K. Agarwal 

Shri Akhilesh Kumar (Alternate) 

Col P. K. Srivastava 

Col V. V. Kadam (Alternate) 

Shri Chatteriee 

Shri Kapil K. Rai (Alternate) 

Shri A. R. Rao 

Shri D. J. Basu (Alternate) 

Shri S. P. Roy 

Shri R. N. Ram (Alternate) 

Shri R. K. Garg 

Shri P. K. Sood (Alternate) 

Shri Sameer Golwelkar 

Shri Shishir Akarte (Alternate) 

Shri B. B. Panigrahi 

Shri Mohan Patel Khetra (Alternate) 

Shri S. K. Mishra 

Shri G Ramaswami (Alternate) 

Shri Soumendu K. Maihi 

Shri A. K. Sil (Alternate) 

Shri G S. Bhalla 

Capt R. Modi (Alternate) 

Sri Ivn Prasada Rao 

Sri P. V. Raghava Raju (Alternate) 

Shri Raiesh Prasad 

Shri Manoi Panwar (Alternate) 

Shri Subrata Dutta 

Shri Sbn Sharma (Alternate) 

Shri Om Prakash Dalmia 

Shri Saniay O. Dalmia (Alternate) 

Shri C. K. Veda, Scientist 'F' & Head (MED) 
Representing Director General (Ex-ojficio) 



Member Secretary 

Shri D. K. Das 

Scientist 'E' (MED), BIS 



Bureau of Indian Standards 

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote 
harmonious development of the activities of standardization, marking and quality certification of goods 
and attending to connected matters in the country. 

Copyright 

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form 
without the prior permission in writing of BIS. This does not preclude the free use, in the course of 
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. 
Enquiries relating to copyright be addressed to the Director (Publications), BIS. 

Review of Indian Standards 

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed 
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are 
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards 
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of 
'BIS Catalogue' and 'Standards : Monthly Additions'. 

This Indian Standard has been developed from Doc No.: MED 10 (0977). 



Amendments Issued Since Publication 

Amend No. Date of Issue Text Affected 



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